1//
2// Copyright (c) 2016 The ANGLE Project Authors. All rights reserved.
3// Use of this source code is governed by a BSD-style license that can be
4// found in the LICENSE file.
5//
6// This mutating tree traversal works around an issue on the translation
7// from texelFetchOffset into HLSL function Load on INTEL drivers. It
8// works by translating texelFetchOffset into texelFetch:
9//
10// - From: texelFetchOffset(sampler, Position, lod, offset)
11// - To: texelFetch(sampler, Position+offset, lod)
12//
13// See http://anglebug.com/1469
14
15#ifndef COMPILER_TRANSLATOR_TREEOPS_REWRITE_TEXELFETCHOFFSET_H_
16#define COMPILER_TRANSLATOR_TREEOPS_REWRITE_TEXELFETCHOFFSET_H_
17
18class TIntermNode;
19class TSymbolTable;
20
21namespace sh
22{
23
24void RewriteTexelFetchOffset(TIntermNode *root, const TSymbolTable &symbolTable, int shaderVersion);
25
26} // namespace sh
27
28#endif // COMPILER_TRANSLATOR_TREEOPS_REWRITE_TEXELFETCHOFFSET_H_